If you earn £40,000 a year, you're a basic rate taxpayer — but that doesn't mean you pay 20% on everything. Thanks to the personal allowance, a big chunk of your salary is completely tax-free. Here's exactly what comes out of your pay packet in 2026/27.
In the UK, income tax is calculated in bands — you don't pay the same rate on every pound you earn. For 2026/27, the personal allowance remains at £12,570, which means the first £12,570 of your £40,000 salary is completely free of income tax.
That leaves £27,430 as your taxable income. All of this falls within the basic rate band (20%), which runs up to £50,270. So your income tax bill comes to £27,430 × 20% = £5,486.
You won't touch the higher rate (40%) at this salary — that only kicks in on earnings above £50,270. So despite what people often assume, a £40,000 salary is entirely within the basic rate band.
Income tax isn't the only deduction to think about. You'll also pay Class 1 National Insurance contributions (NICs). For employees in 2026/27, NICs are charged at 8% on earnings between £12,570 and £50,270 per year.
On a £40,000 salary, your NIC liability works out at: (£40,000 − £12,570) × 8% = £27,430 × 8% = £2,068 per year. There's no NIC on the first £12,570, and the 2% rate only applies above £50,270, so none of that affects you here.
Add your income tax (£5,486) and NICs (£2,068) together and your total deductions come to roughly £7,554 — leaving an estimated take-home pay of £32,446 per year, or around £2,704 per month.
The figures above assume you're on a standard tax code (1257L), have no student loan, and aren't making pension contributions. In reality, any of these can change what lands in your bank account each month. If you're making pension contributions — especially through salary sacrifice — your taxable income drops, which reduces both your income tax and NICs.
Student loan repayments are another common deduction. If you're on Plan 2 (the most common for post-2012 graduates), you repay 9% of earnings above £27,295. On a £40,000 salary that's around £1,145 per year on top of your tax and NI. Plan 1 and Plan 5 thresholds are different, so it's worth checking which plan you're on.
Your tax code also matters. If HMRC has adjusted your code — for example, because you have a company benefit like private medical insurance — your personal allowance may be lower, meaning you pay more tax. Always check your payslip and confirm your tax code looks correct.
You'll pay £5,486 in income tax. Your first £12,570 is covered by the personal allowance, and the remaining £27,430 is taxed at the 20% basic rate.
After income tax and National Insurance, your estimated take-home pay is around £32,446 per year — roughly £2,704 per month — based on a standard 1257L tax code and no other deductions.
No. The 40% higher rate only applies to earnings above £50,270 in 2026/27. A £40,000 salary falls entirely within the 20% basic rate band.
You'll pay around £2,068 in Class 1 NICs for the year. This is calculated at 8% on the portion of your salary between £12,570 and £40,000.
Yes. Pension contributions reduce your taxable income. For example, contributing £2,000 into a workplace pension lowers your taxable income to £38,000, reducing your income tax and potentially your NICs too — especially with salary sacrifice.
Based on standard 2026/27 rates with no student loan or pension deductions, £40,000 a year works out to approximately £2,704 per month after income tax and National Insurance.